Alright, let's work through 2573 times 8361 step by step
2573 × 8361 = 8361 × (2573)
+ 8361 × 3 that is equal 25083
+ 8361 × 70 resulting in 585270
+ 8361 × 500 yielding 4180500
+ 8361 × 2000 yielding 16722000

= 21512853
